BMW 1-Series Forum (F20) 135i - 1Addicts.com > Second Generation 1 Series Forum > 2012 BMW 1-Series Sporthatch (F20) Discussion > 120d N47 noise at low RPM
Post Reply
 
Thread Tools Search this Thread
      12-20-2017, 01:46 PM   #1
Berben
Registered
0
Rep
4
Posts

Drives: F20 120d AT
Join Date: Dec 2017
Location: Poland

iTrader: (0)

120d N47 noise at low RPM

Hi,

not that long ago I've replaced my E90 320D (177hp N47 engine) with 2013 F20 120D (184hp N47 engine). I liked how the engine was performing in E90, it had very little vibrations and noise was really acceptable at all RPM levels.

Now, with F20 I'm kinda dissapointed. It's automatic so in comfort mode the transmission keeps RPM quite low. Between 1100-1500 RPM there is a lot of noise comming from the engine in the cabin. I know that these kind of RPMs are quite low for a diesel engine but driving at casual speeds is a nightmare compared to E90. Owners of 120d/118d - is it normal or there something faulty in my car?

On a different note - I don't know why the transmission keeps such a low RPMs. I don't think it's healthy for all of the components in a car. Driving casually in sports mode is not a way out of the situation as that mode has it's own downsides.

Any help greatly appreciated!
Appreciate 0
      12-20-2017, 03:37 PM   #2
emil111
Second Lieutenant
emil111's Avatar
Romania
31
Rep
245
Posts

Drives: BMW 114d
Join Date: Oct 2015
Location: Romania

iTrader: (0)

can you describe the noise please?
__________________
Bmw 114d
Honda Jazz
Daewoo Matiz
Daewoo Nubira II
Appreciate 0
      12-20-2017, 03:52 PM   #3
Berben
Registered
0
Rep
4
Posts

Drives: F20 120d AT
Join Date: Dec 2017
Location: Poland

iTrader: (0)

It sound like low frequency humming. Probably effect of the overly big engine vibrations.
Appreciate 0
      12-30-2017, 12:28 AM   #4
Ben_M135i
Enlisted Member
2
Rep
35
Posts

Drives: 2013 M135i
Join Date: Sep 2014
Location: Western Australia

iTrader: (0)

Try using sport mode or flick the shifter over to the sportier shift setting?
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 12:54 AM.




1addicts
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST